Improvement in cotton-gin knife-rollers



T. H. RUSHTGN & w. DUBSUN.

Button-Gin Knife-Rollers,

' Patented june 24,1873.

THOMAS H. RUSHTON AND \VILLIAM DOBSON, OF BOLTON, ENGLAND.

IMPROVEMENT IN COTTON-GIN KNIFE-ROLLERS.

' Specification forming part ofLettcrs Patent No. ll lldLQllQ, dated June 24, 1873;-app1ication filed February 27, 1873.

. as hereinafter described and pointed out in the claim.

Figure 1 is a transverse section; Fig. 2,

- mainly a plan view of a cotton-gin; and Figs.

3 and 4 represent one end of knife-roller to full size.

a represents the knife-roller, which consists of a number of blades connected with an axle by akey. Each blade has two or more angles,

' the projecting angle of one bladefitting into the angle of its adjacent blade, as shown in Figs. 2 and 4. The alternate angles of the "blades are at each end of the roller reduced in. diameter, as shown, to prevent the seed from being movedtoward framing, while the other angles are of the full diameter so as to move the cotton and seed from framing. This prevents clogging between the ends of roller p and framing. c is the doctor-knife, placed under roller a b and pressed by springs (Z. The knife rests upon a shoulder of cross-beam c, the ends of which are secured to the frame sides, and to each end is cast an ear in which is placed a regulating-screw. The knife can be then adjusted without stopping theinachine. The roll a is partly surrouinled by grid 5;, through which passes the seed. The rolls a b may be turned by a crossed strap from a drum or drive-shaft.

The seed-cotton to be cleaned is placed on table it and dropped into a hopper formed by inclined boards i and curved top cross-stayj.

The fibers pass between it'and the doctorknife and fall under roll a, while the seeds are stripped and fall through the grid into the receptacle.

hat I claim is- A cotton-gin knife roller provided with blades having two or more angles arranged in line with each other in the direction of the shaft, their inclined parts being parallel to each other, as and for the purpose described. In testimony whereof" we have hereunto set our hands before two subscribing witness.

THOMAS HEJRY RUSIITON. \VM. DOBSON.

Witnesses:

H. B. BA'RLow, J. W. APrLnBY. 

